G. K. Carpenter

Fredrick “Fred” D. Johnson

Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Samuel Goudsmit

Samuel Goudsmit (1902-1978) was a Dutch-American physicist. In May 1944, Goudsmit became scientific director of the Manhattan Project’s Alsos Mission, a top-secret operation responsible for gathering intelligence on Germany’s atomic program.

John W. Wilkes

John Wilkes worked for the Roane-Anderson Company.

A. Downey